August 27, 2009 at 09:20 PM EDT

Hot-pink gossip-slinger Perez Hilton is well-known for his capacity to both love (Lady Gaga, Katy Perry, Tori Amos) and hate (Jennifer Aniston, Jessica Alba, Chris Brown) the celebrities whose every burp and bruise he chronicles.

One star who won’t turn the other cheek? Brit songstress Lily Allen, who served him with a Twitter smackdown earlier this year (she famously called him a “jealous and bitter lonely old queen,” “a little parasite” and most succinctly, “a douchebag”; he’s been biting back ever since).

Today, the two are back on the battlefield following a Perez post, “Lily Allen + Motherhood = Disaster!!!” (complete with the requisite digi-pen doodles) in which he reacts to Lily saying she looks forward to motherhood one day with a number of verbal bitchslaps, including, “Can’t you stick to intoxication instead of moving on to procreation? It’s what you know best!”

Allen, who somewhat publicly endured a miscarriage last year, tweeted today in response: “what an evil bastard, i hate this man. someone better watch themselves … And yes, that is a threat.”

Hilton’s reply? “I love you too! xoxo.” Followed by “ha ha ha ha!,” “i’m worth more than that,” and finally, a little self-promotion: “P.S. Have you checked out my new website yet, Lils? Next time you and Kate….. you’ll have fun reading!”

What do you think, Music Mixers — is Perez within his gossipy rights, or has this all gotten too personal? Should Lily walk away, or follow through on her twit-threat?

More from EW’s Music Mix:

‘New Moon’ soundtrack news: What band scored the coveted lead-single spot?

Guilty Pleasures, Round One: Nickelback (1) vs. Phish (16)

Cory Chisel: Music Mix exclusive stream

Outkast’s “B.O.B.”: Is it the best song of the decade?

Michael Jackson ‘Remix Suite’: How do they measure up to the originals?

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